diff options
Diffstat (limited to 'techlibs/common/mul2dsp.v')
| -rw-r--r-- | techlibs/common/mul2dsp.v | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/techlibs/common/mul2dsp.v b/techlibs/common/mul2dsp.v index 953fc28d1..3ca69b7b1 100644 --- a/techlibs/common/mul2dsp.v +++ b/techlibs/common/mul2dsp.v @@ -61,6 +61,8 @@ module _80_mul (A, B, Y); input [B_WIDTH-1:0] B;
output [Y_WIDTH-1:0] Y;
+ parameter _TECHMAP_CELLTYPE_ = "";
+
generate
if (0) begin end
`ifdef DSP_A_MINWIDTH
@@ -75,8 +77,10 @@ module _80_mul (A, B, Y); else if (Y_WIDTH < `DSP_Y_MINWIDTH)
wire _TECHMAP_FAIL_ = 1;
`endif
+ else if (_TECHMAP_CELLTYPE_ == "$mul" && A_SIGNED != B_SIGNED)
+ wire _TECHMAP_FAIL_ = 1;
`ifdef DSP_SIGNEDONLY
- else if (!A_SIGNED)
+ else if (_TECHMAP_CELLTYPE_ == "$mul" && !A_SIGNED)
\$mul #(
.A_SIGNED(1),
.B_SIGNED(1),
@@ -89,7 +93,7 @@ module _80_mul (A, B, Y); .Y(Y)
);
`endif
- else if (A_WIDTH < B_WIDTH)
+ else if (_TECHMAP_CELLTYPE_ == "$mul" && A_WIDTH < B_WIDTH)
\$mul #(
.A_SIGNED(B_SIGNED),
.B_SIGNED(A_SIGNED),
|